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Finding the Fourth Proportional to 254.45, 379.53 and 246.76

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Solution

The fourth proportional to 254.45, 379.53 and 246.76 is: 368.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.45 : 379.53 = 246.76 : x
  2. Step 2: Convert to fraction form
    254.45/379.53 = 246.76/x
  3. Step 3: Cross multiply
    254.45x = 379.53 × 246.76
  4. Step 4: Simplify right side
    254.45x = 93,651.19
  5. Step 5: Solve for x
    x = 93,651.19/254.45
  6. Step 6: Final answer
    x = 368.05

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.